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Finding the Fourth Proportional to 319,890,682.60, 479,836,023.90 and 319,890,682.60

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Solution

The fourth proportional to 319,890,682.60, 479,836,023.90 and 319,890,682.60 is: 479,836,023.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,890,682.60 : 479,836,023.90 = 319,890,682.60 : x
  2. Step 2: Convert to fraction form
    319,890,682.60/479,836,023.90 = 319,890,682.60/x
  3. Step 3: Cross multiply
    319,890,682.60x = 479,836,023.90 × 319,890,682.60
  4. Step 4: Simplify right side
    319,890,682.60x = 153,495,073,221,440,928
  5. Step 5: Solve for x
    x = 153,495,073,221,440,928/319,890,682.60
  6. Step 6: Final answer
    x = 479,836,023.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.